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Inspection and Maintenance: Bioretention & Bioswales (view source)
Revision as of 20:10, 11 April 2022
, 2 years agono edit summary
*Woody [[vegetation]] should not be planted or allowed to become established where snow will be piled/stored during [[Winter]].
*Woody [[vegetation]] should not be planted or allowed to become established where snow will be piled/stored during [[Winter]].
*Removal of sediment from the filter bed surface should be done with rake and shovel, or vacuum equipment to minimize plant disturbance. If a small excavator is to be used, keep it off the BMP footprint to avoid damage to side slopes/embankments and over-compaction of the [[filter media]].
*Removal of sediment from the filter bed surface should be done with rake and shovel, or vacuum equipment to minimize plant disturbance. If a small excavator is to be used, keep it off the BMP footprint to avoid damage to side slopes/embankments and over-compaction of the [[filter media]].
==Inspection and Testing Framework==
{| class="wikitable" style="width: 1000px;"
|+'''Inspection and Testing Framework - Bioretention/Swales'''<br>
</br>
|-
!<br>'''Indicator Type'''
!<br>'''Indicators'''
!<br>'''Construction Inspection'''
!<br>'''Assumption Inspection'''
!<br>'''Routine Operation Inspection'''
!<br>'''Verification Inspection'''
|-
|rowspan="22"|'''Visual Indicators'''
|-
|CDA condition
|x
|x
|x
|x
|-
|Inlet/Flow Spreader Structural Integrity
|
|x
|x
|x
|-
|Inlet/Flow Spreader Structural Integrity
|x
|x
|x
|x
|-
|Pretreatment sediment accumulation
|x
|x
|x
|
|-
|rowspan="5"|'''Testing Indicators'''
|
|-
|Impermeable liner installed correctly, if applicable
|
|-
|Installations of sub-drain pipes (e.g., locations, elevations, slopes), standpipes/monitoring wells are acceptable
|
|-
|Sub-drain trench dams installed correctly (location, elevation)
|
|-
|rowspan="4"|'''Landscaping''' – after final grading, prior to planting
|Filter bed depth and surface elevations at inlets are acceptable
|
|-
|Maximum surface ponding depth is acceptable
|
|-
|Filter bed is free of ruts, local depressions and not overly compacted
|
|-
|Planting material meets approved planting plan specifications (plant types and quantities)
|-
|colspan="3" style="text-align: center;" |'''<u><span title=>Note:''' for Observation Column: S = Satisfactory; U = Unsatisfactory; NA = Not Applicable*</span></u>
|-
|}
==Construction Inspection Tasks==
==Construction Inspection Tasks==